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Finding the Fourth Proportional to 111,648.52, 154,066.02 and 63,890.92

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Solution

The fourth proportional to 111,648.52, 154,066.02 and 63,890.92 is: 88,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,648.52 : 154,066.02 = 63,890.92 : x
  2. Step 2: Convert to fraction form
    111,648.52/154,066.02 = 63,890.92/x
  3. Step 3: Cross multiply
    111,648.52x = 154,066.02 × 63,890.92
  4. Step 4: Simplify right side
    111,648.52x = 9,843,419,758.54
  5. Step 5: Solve for x
    x = 9,843,419,758.54/111,648.52
  6. Step 6: Final answer
    x = 88,164.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.